一段时间
近义词与同义词
按词义分组列出，使用时请结合具体语境。
a period of indeterminate length (usually short) marked by some action or condition; "he was here for a little while"; "I need to rest for a piece"; "a spell of good weather"; "a patch of bad weather"
an amount of time; "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"